Journal of the American Chemical Society

Condensations with 1, 2-Hydrazinedicarboxamidine. 2, 2'-Hydrazopyrimidines

A Kreutzberger

Index: Kreutzberger Journal of the American Chemical Society, 1959 , vol. 81, p. 6017,6020

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Citation Number: 18

Abstract

IIa, IIIa and IVa, R= CHI, R'= CH3, R”= H IIb, IIIb and IS%, R= CHs, R'= GH6, R”= H IIc, IIIc and IVc, R= C2H6, R'= CtHs, Ii”= H IId, IIId and IVd, R= CHs, R'= CHI. R”= CHI 4, 4 '- dihydroxy-5, 5'-dicarbethoxy-2, 2 '-hydrazopyrimidine (VI). In this synthesis, it is not necessary to start with the free ester V. Instead, one can use the sodium compound of V which is the precursor in the synthesis of V from diethyl malonate and chl~ roform,~ and ...